diff --git a/plugins/content/fields/src/Extension/Fields.php b/plugins/content/fields/src/Extension/Fields.php
index dfebe6c0185f1..517a880380baa 100644
--- a/plugins/content/fields/src/Extension/Fields.php
+++ b/plugins/content/fields/src/Extension/Fields.php
@@ -91,7 +91,7 @@ private function prepare($string, $context, $item)
 
         $parts = FieldsHelper::extract($context);
 
-        if (count($parts) < 2) {
+        if (!$parts || count($parts) < 2) {
             return $string;
         }